I believe the CAD drawings are very important to design. Our mentors however did not think it was. So when we came upon the problem of not having the right wheels because we were making the robot basicly as we went we had run into the issue and had to reorder wheels. Needless to say for all those who don't think its important there is a prime example. That and if you are really savy about using it you can model everything down to bolts and wires and can generally get to know your robot very well even if it is shipped off
